Apart from two years as a
jackaroo, Service worked in Sydney until he moved to Canberra in 1964 as an executive of
Moteliers. In 1981 Service founded
JG Service which is a national property and development consulting company based in
Canberra. The company now employs around 100 staff in Australia and New Zealand. He served as national president of the
Property Council of Australia, the Building Owners and Managers Association and chairman of the Australian Building Codes Board. Service was appointed a director and chairman of
ACTEW in June 1995. He was also chairman of the ActewAGL Joint Venture Partnerships Board, TransACT Communications Pty Limited, TransACT Capital Communications Pty Limited, J G Service Pty Limited and JGS (UK) Limited; deputy chairman of Australand Property Group and a director of CapitaMall Trust Management Limited. ==Community involvement==